Yes, we suggest subscribing to the "axp-list" mailing list. To subscribe, simply send mail with a subject of "subscribe" (no message-body) to: axp-list-request@redhat.com.
There's also the Debian-Alpha mailing list. It's a must when you use that distribution, but it also carries discussions on topics that Red Hat users might be interested in. Visit Debian home page to subscribe.
There are also several other mailing lists for AlphaLinux. There's a complete list and archives available at www.alphalinux.org.
If you're curious to see what's going on in the Japanese Linux/Alpha scene, the "linux-alpha-jp" mailing list is for you. Subscribe to that list by sending mail to majordomo-zagato@kuamp.kyoto-u.ac.jp with a body containing the line "subscribe linux-alpha-jp". Be advised that many mails are written in Japanese (ISO-2022-JP).
The group comp.os.linux.alpha started in June 1997. It should be available on most servers by now, and can also be read through DejaNews.